You can also check the sources from Fabrice's tools.
I was about to try and find how I was doing in Oric Disk Manager, but the source is somewhere on another computer, it's too late for today.

Anyway, an MFM disk, IIRC, is based on a 256 bytes header, and then the whole disk, physically, including its gaps between the sectors, and so on.
The "old" Euphoric DSK format (the one you convert with OLD2MFM) also had a 256 bytes header, with "ORICDISC" or something similar, but only included logical datas from the disk (the sectors). Not the gaps.
Fabrice will correct me if I'm wrong.

ok 2 or 3 years later and i am finally on the disk trail. However me being me i still don't speak French (with More french friends than English ones you would have thought i'd have learnt some by now?).
I looked at sedoric a nu but could not see any description of boot stuff.
I remember donkey's years ago it being mentioned that all oric's look for bootup.com in track 0 of the inserted disk on bootup and that sedoric has this but redirects everything after to boot its own system.
However i am still none the wiser in knowing how all this works (in English).
If someone could provide me with a little English guide to how Disks boot on Oric, then i would be very happy, otherwise i will continue to search the net for the answers.

Twilighte wrote:ok 2 or 3 years later and i am finally on the disk trail. However me being me i still don't speak French (with More french friends than English ones you would have thought i'd have learnt some by now?).
I looked at sedoric a nu but could not see any description of boot stuff.
I remember donkey's years ago it being mentioned that all oric's look for bootup.com in track 0 of the inserted disk on bootup and that sedoric has this but redirects everything after to boot its own system.
However i am still none the wiser in knowing how all this works (in English).
If someone could provide me with a little English guide to how Disks boot on Oric, then i would be very happy, otherwise i will continue to search the net for the answers.